Imports github.com/codegangsta/cli github.com/containerd/containerd/archive github.com/docker/docker/pkg/archive github.com/fsouza/go-dockerclient github.com/heroku/docker-registry-client/registry github.com/openSUSE/umoci/oci/layer github.com/spf13/jwalterweatherman Standard library imports bufio context fmt io io/ioutil os os/exec os/signal path path/filepath strings syscall